hubbard



NITED STATES PATENT OFFICE.

GEORGE W. HUBBARD, OF WINDSOR, VERMONT.

GLAZIERS POINT.

SPECIFICATION forming part of Letters Patent No. 230,631, dated August 3, 1880.

Application filed November 6, 1379.

To all whom t may concern:

Be it known that I, GEO. W. HUBBARD, of Windsor, in the county of Windsor and Stat-e of Vermont, have invented a new and useful Improvement in Glaziers Points, of which the following is a speciiication.

The invention relates to sheet-metal lpoints used by glaziers for securing glasses in window-sash.

Heretofore such points have been made of a triangulaishape. The triangular shape is objectionable, for the reason that a considerable portion ofthe material in such points is superfluous and unnecessary after the point is properly set in the sash. The triangular shape is also objectionable, for reason of the liability of the router angles, from inaccuracy in driving, catching upon the knife used in pntlying, and being thus thrown farther outward upon the glass. Itis also objectionable, for the leason that its manufacture is necessarily coinparatively slow and imperfect or difficult, each successive point requiring` the strip from which it is cut to be turned over or presented at a different angle to the cutters from that of the .1' receding one; also, because any inaccuracy in feeding the strip forward between the cutters results in the making of a point having either an imperfect angle orless than its proper height; also, because the portion projecting upon the glass is less perfectly adapted for the accurate insertion ofthe point into the sash by a machine constructed specially for such insertion.

The object of my invention is to provide glaziers7 points which shall require a less amount of material in their manufacture and shall be equally eiiicient after insertion into the sash as those heretofore used, and which also,

after insertion into the sash, shall be less liable to catch upon the knife used in puttying, and thus thrown outward upon the glass.

The point-s can be cut from a strip or series of strips of metal fed forward between the cutters at a uniform angle and without. turning' over, and the angles or points are uniformly sharp and perfect, whatever the variations iu the feeding forward of the strips tothe cutters may be. The point is also more perfectly adapted in its shape for accurate insertion into the sash by a machine constructed for such insertion.

The invention consists in the or form ofthe point-s.

ln the accompanying' drawings, in which similar letters of reference indicate like parts, A B, Figure 1, is a side elevation, and'A O B.

peculiar shape D, Fig. 2, a plan view of my invention. Each figure also shows, in dotted lines, a portion, G G, of ordinary window-sash, into which the point is shown as inserted.

H represents the glass held in place by the point A B.

Glaziers points have heretofore been made approximately ofthe shape E B F, Fig. 2.

It is evident that my improved point, while dispensing with the' portions A O E and A D F, Fig. 2, retains an equal bearing in the wood ofthe sash GGand projection upon the glass H.

What l claim is- As a new article of manufacture, glaziers points of a lozenge or diamond shape, as set forth.

GEo. wf HUBBARD. YVitncsses:

HORACE P. MCGLARY, FRED. SARGENT. 

